In 2009, Facebook’s traffic grew by 66% and Twitter’s by 47%.

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The number of members of LinkedIn with the title vice-president grew 426% faster than the membership of the site as a whole in 2005-09.

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The average YouTube user spends 15 minutes a day on the website, compared with 5 hours that the average TV viewer spends in front of the box.

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Five months after it was launched, users of Blippy - a Twitter-like service that broadcasts what people buy - share $1.5 million in transactions every week.

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With 48 billion unique images, Facebook houses the world's largest photo collection.

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Facebook users are adding photos at a rate of nearly 1 billion unique images a week.

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70% of Facebook's users are from outside the US.

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Users share more than 25 billion pieces of information with Facebook each month.

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Facebook flashed more than 176 billion banner ads at users in the first three months of this year — more than any other site.

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Just a month after launching Open Graph, Facebook is quickly approaching the point where it will process 100 million unique clicks of a Like button each day.

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More than 1 in 4 people who browse the Internet not only have a Facebook account but have returned to the site within the past 30 days.

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Research pegs the total U.S. social media audience at 127 million.

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YouTube is expected to generate as much as $700 million in revenue this year.

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BBC's website receives 20 million British visitors a month - a third of the UK population and around the same as the proportion of Americans who log on to Facebook.

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For the week ending March 13th 2010, Facebook accounted for 7.1% of the America's web traffic, compared with Google’s 7.0% - the first time Facebook has had a weekly lead.

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Traffic from legal online video sites like Hulu, iPlayer and Youtube has surged from 13% of all internet traffic in 2008 to 27% in 2009.

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Facebook accounts for nearly half of all the time people in the UK spend going online using their phones. Britons spent around 2.2 billion minutes browsing the social network during December 2009 alone.

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In December 2009, Facebook recorded nearly 112 million unique visitors in the United States, compared to 57 million for MySpace and 20 million for Twitter.

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It took Facebook 5 years to garner its first 150 million users but just 8 months to double that number.

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Facebook users post over 55 million updates a day on the site and share more than 3.5 billion pieces of content with one another every week.

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